Hot and cold water mixing discharge device

Abstract

An automatic temperature control means 16 for automatically generating a mixed warm water of prescribed temperature by mixing an introduced hot water from a hot water inflow passage 14 and an introduced cold water from a cold water inflow passage 12 with each other at a flow rate ratio corresponding to the prescribed temperature, and a flow rate control means 19 for regulating the temperature of the discharged mixed warm water by mixing it with a hot or cold water introduced from the hot or cold water inflow passage 14 or 12 through a by-pass 18 around the former means are provided. As a result, mixed warm water of desired temperature can be easily obtained by manipulating the flow rate control means 19.

What is claimed is: 
     
       1. A hot and cold water mixing faucet in which a handle having a lever is supported by the body of said faucet over said body so that said handle can be vertically swung with the lever thereof to regulate the flow rate of a warm water about to be discharged from a discharge port, and can be horizontally turned with said lever to regulate the temperature of said water about to be discharged from said port, including a stopper means for preventing said handle from being turned beyond a prescribed position in such a direction as to heighten said temperature; and prevention annulment means for putting said stopper means out of preventive action. 
     
     
       2. A hot and cold water mixing faucet according to the claim 1, including a prevention annulment locking means for keeping the stopper means out of preventive action. 
     
     
       3. A hot and cold water mixing faucet according to the claim 1, wherein the stopper means includes a stopper pin which is moved in an arc-shaped path about the axis of the body of said faucet in conjunction with the turning of the handle; and a stopper portion provided on said path so that said pin can be engaged with said portion to prevent said handle from being turned beyond the prescribed position in the direction to heighten the temperature of the warm water about to be discharged from the discharge port. 
     
     
       4. A hot and cold water mixing faucet according to the claim 3, wherein the prevention annulment means includes a push button provided in the handle; a slider which is slid as said button is pressed in; and a wire connecting said slider and the stopper pin to each other so that when said slider is slid, said wire is pulled to draw said pin to disengage it from the stopper portion. 
     
     
       5. A hot and cold water mixing faucet according to the claim 3, wherein the prevention annulment means includes a wire connected at one end thereof to the stopper pin and secured at the other end of said wire in the handle; a push button provided in said handle; and a wire pusher which pushes and flexes said wire when said button is pressed in. 
     
     
       6. A hot and cold water mixing faucet according to the claim 3, wherein the prevention annulment means includes a push button provided in the handle; and a plate connecting said button and the stopper pin to each other so that when said button is pressed in, said plate is moved to swing said pin to disengage it from the stopper portion. 
     
     
       7. A hot and cold water mixing faucet according to the claim 2, characterized in that the prevention annulment locking means acts in response to the sliding of a push button so as to keep it pressed in. 
     
     
       8. A hot and cold water mixing faucet according to the claim 2, characterized in that the prevention annulment locking means acts in response to the turning of a push button so as to keep it pressed in. 
     
     
       9. A hot and cold water mixing faucet according to the claim 1, wherein the stopper means includes a stopper pin which is moved in an arc-shaped path about the axis of the body of said assembly in conjunction with the turning of the handle, and a stopper portion whose top adjoins the upper end of a slope extending down from said top to said path; the prevention annulment means includes a push button provided in said handle, and a semicircular locking plate which is located over said pin to restrict the upward movement thereof, and can be rotated through the pressing-in of said button so that said plate is not located over said pin. 
     
     
       10. A hot and cold water mixing faucet according to the claim 1, wherein the stopper means includes a semicircular locking disk which is moved in an arc-shaped path about the axis of the body of said assembly in conjunction with the turning of the handle, and a stopper portion projecting on said path so that said plate can be engaged with said portion to prevent said handle from being turned beyond a prescribed position in such a direction as to heighten the temperature of the warm water about to be discharged from the discharge port; and the prevention annulment means includes a push button provided in said handle so that when said button is pressed in, said plate is rotated not to be engaged with said stopper portion. 
     
     
       11. A hot and cold water mixing faucet in which a handle having a lever is supported by the body of said faucet over said body so that said handle can be vertically swung manually with the lever thereof to regulate the flow rate of warm water about to be discharged from a discharge port, and can be horizontally turned manually with said lever to regulate the temperature of said water about to be discharged from said port, wherein the range of the swinging or turning of said handle consists of an ordinary quantity discharge portion extending from a valve closure position to a boundary position, and a large quantity discharge portion extending from said boundary position to a valve entire opening position; and a stopper means for preventing said handle from being swung or turned out of the former portion into the latter portion, and a prevention annulment means for putting said stopper means out of preventive action are provided.